Ink cartridge



FIG. 1 is an isometric view of the ink cartridge;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is front elevational view thereof, the back elevational view being a mirror image of FIG. 4;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines shown on FIGS. 1–6 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an ink cartridge, as shown. 